const path = require('path')
const webpack = require('webpack')
const packageJson = require('./package.json')
const GitRevisionPlugin = require('git-revision-webpack-plugin')
const GitRevision = new GitRevisionPlugin()
const buildDate = JSON.stringify(new Date().toLocaleString())
const createThemeColorReplacerPlugin = require('./config/plugin.config')

// const resolve = dir => require('path').join(__dirname, dir)

// 所有生产环境
const prodPlugin = []
if (process.env.NODE_ENV === 'production') {
  // 如果是生产环境，则自动清理掉打印的日志，但保留error 与 warn
  prodPlugin.push([
    'transform-remove-console',
    {
      // 不清理的内容
      exclude: ['error', 'warn'] // 保留 console.error 与 console.warn
    }
  ])
}

function resolve (dir) {
  return path.join(__dirname, dir)
}

// check Git
function getGitHash () {
  try {
    return GitRevision.version()
  } catch (e) { }
  return 'unknown'
}
// eslint-disable-next-line no-unused-vars
const isProd = process.env.NODE_ENV === 'production'
// eslint-disable-next-line no-unused-vars
const assetsCDN = {
  // webpack build externals
  externals: {
    vue: 'Vue',
    'vue-router': 'VueRouter',
    vuex: 'Vuex',
    axios: 'axios',
    'viser-vue': 'ViserVue'
  },
  css: [],
  js: [
    '//unpkg.com/viser-vue/umd/viser-vue.min.js',
    '//lib.baomitu.com/vue/2.6.14/vue.min.js',
    '//lib.baomitu.com/vue-router/3.5.1/vue-router.min.js',
    '//lib.baomitu.com/vuex/3.1.1/vuex.min.js',
    '//lib.baomitu.com/axios/0.21.1/axios.min.js'
  ]
}

// vue.config.js
const vueConfig = {
  configureWebpack: {
    // presets: [
    //   '@vue/cli-plugin-babel/preset'
    // ],
    // webpack plugins
    plugins: [
      // Ignore all locale files of moment.js
      new webpack.IgnorePlugin({
        contextRegExp: /^\.\/locale$/,
        resourceRegExp: /moment$/
      }),
      new webpack.DefinePlugin({
        APP_VERSION: `"${packageJson.version}"`,
        GIT_HASH: JSON.stringify(getGitHash()),
        BUILD_DATE: buildDate
      })
      // ...prodPlugin
    ],
    // en_US: `if prod, add externals`
    // zh_CN: `这里是用来控制编译忽略外部依赖的，与 config.plugin('html') 配合可以编译时引入外部CDN文件依赖`
    externals: isProd ? assetsCDN.externals : {}
  },

  chainWebpack: (config) => {
    config.resolve.alias.set('@$', resolve('src'))
    // config.resolve.alias
      // set第一个参数：设置的别名，第二个参数：设置的路径
      // .set('@$',resolve('src'))
      // .set('assets',resolve('src/assets'))
      // .set('components',resolve('src/components'))
      // .set('utils',resolve('src/utils'))
      // .set('views',resolve('src/views'))

    // const svgRule = config.module.rule('svg')
    // svgRule.uses.clear()
    // svgRule
    //   .oneOf('inline')
    //   .resourceQuery(/inline/)
    //   .use('vue-svg-icon-loader')
    //   .loader('vue-svg-icon-loader')
    //   .end()
    //   .end()
    //   .oneOf('external')
    //   .use('file-loader')
    //   .loader('file-loader')
    //   .options({
    //     name: 'assets/[name].[hash:8].[ext]',
    //     esModule: false
    //   })

    // en_US: If prod is on assets require on cdn
    // zh_CN: 如果是 prod 模式，则引入 CDN 依赖文件，有需要减少包大小请自行解除依赖
    //
    if (isProd) {
      config.plugin('html').tap(args => {
        args[0].cdn = assetsCDN
        return args
      })
    }
  },

  css: {
    loaderOptions: {
      less: {
        modifyVars: {
          // less vars，customize ant design theme

          // 'primary-color': '#F5222D',
          // 'link-color': '#F5222D',
          'border-radius-base': '2px'
        },
        // DO NOT REMOVE THIS LINE
        javascriptEnabled: true
      }
    }
  },

  devServer: {
    // development server port 8000
    port: 8000,
    client: {
      overlay: false
    }
    // If you want to turn on the proxy, please remove the mockjs /src/main.jsL11
    // proxy: {
    //   '/api': {
    //     // target: 'https://mock.ihx.me/mock/5baf3052f7da7e07e04a5116/antd-pro',
    //     target: process.env.VUE_APP_API_BASE_URL,
    //     ws: false,
    //     changeOrigin: true,
    //     pathRewrite: {
    //       "^/api": ""
    //     }

    //   }
    // }
  },

  // disable source map in production
  productionSourceMap: false,
  // babel-loader no-ignore node_modules/*
  transpileDependencies: [],
  lintOnSave: false
}

// preview.pro.loacg.com only do not use in your production;
if (process.env.VUE_APP_PREVIEW === 'true') {
  // add `ThemeColorReplacer` plugin to webpack plugins
  vueConfig.configureWebpack.plugins.push(createThemeColorReplacerPlugin())
}

module.exports = vueConfig
